Polysaccharide edible film, an layer of mesh structural film, is formed through intramolecular and intermolecular force of polymers. The main feature of polysaccharide based edible film is the biodegradability and edibility, and it can be as an alternative to traditional packaging film. The performances, film forming materials, plasticizers and the application of polysaccharides based films have been introduced, moreover, the trend of commercia...